A064990 - cp's OEIS frontend

A064990 If A_k denotes the first 3^k terms, then A_0 = 0, A_{k+1} = A_k A_k B_k, where B_k is obtained from A_k by interchanging 0's and 1's.

n	a(n)
0	0
1	0
2	1
3	0
4	0
5	1
6	1
7	1
8	0
9	0
10	0
11	1
12	0
13	0
14	1
15	1
16	1
17	0
18	1
19	1
20	0
21	1
22	1
23	0
24	0
25	0
26	1
27	0
28	0
29	1
30	0
31	0
32	1
33	1
34	1
35	0
36	0
37	0
38	1
39	0
40	0
41	1
42	1
43	1
44	0
45	1
46	1
47	0
48	1
49	1
50	0
51	0
52	0
53	1
54	1
55	1
56	0
57	1
58	1
59	0
60	0
61	0
62	1
63	1
64	1
65	0
66	1
67	1
68	0
69	0
70	0
71	1
72	0
73	0
74	1
75	0
76	0
77	1
78	1
79	1
80	0
81	0
82	0
83	1
84	0
85	0
86	1
87	1
88	1
89	0
90	0
91	0
92	1
93	0
94	0
95	1
96	1
97	1
98	0

[0, 0, 1, 0, 0, 1, 1, 1, 0, 0, 0, 1, 0, 0, 1, 1, 1, 0, 1, 1, 0, 1, 1, 0, 0, 0, 1, 0, 0, 1, 0, 0, 1, 1, 1, 0, 0, 0, 1, 0, 0, 1, 1, 1, 0, 1, 1, 0, 1, 1, 0, 0, 0, 1, 1, 1, 0, 1, 1, 0, 0, 0, 1, 1, 1, 0, 1, 1, 0, 0, 0, 1, 0, 0, 1, 0, 0, 1, 1, 1, 0, 0, 0, 1, 0, 0, 1, 1, 1, 0, 0, 0, 1, 0, 0, 1, 1, 1, 0]

cp's OEIS Frontend

A064990 If A_k denotes the first 3^k terms, then A_0 = 0, A_{k+1} = A_k A_k B_k, where B_k is obtained from A_k by interchanging 0's and 1's.

Table of values

List of values

n	a(n)
0	0
1	0
2	1
3	0
4	0
5	1
6	1
7	1
8	0
9	0
10	0
11	1
12	0
13	0
14	1
15	1
16	1
17	0
18	1
19	1
20	0
21	1
22	1
23	0
24	0
25	0
26	1
27	0
28	0
29	1
30	0
31	0
32	1
33	1
34	1
35	0
36	0
37	0
38	1
39	0
40	0
41	1
42	1
43	1
44	0
45	1
46	1
47	0
48	1
49	1
50	0
51	0
52	0
53	1
54	1
55	1
56	0
57	1
58	1
59	0
60	0
61	0
62	1
63	1
64	1
65	0
66	1
67	1
68	0
69	0
70	0
71	1
72	0
73	0
74	1
75	0
76	0
77	1
78	1
79	1
80	0
81	0
82	0
83	1
84	0
85	0
86	1
87	1
88	1
89	0
90	0
91	0
92	1
93	0
94	0
95	1
96	1
97	1
98	0

n	a(n)
0	0
1	0
2	1
3	0
4	0
5	1
6	1
7	1
8	0
9	0
10	0
11	1
12	0
13	0
14	1
15	1
16	1
17	0
18	1
19	1
20	0
21	1
22	1
23	0
24	0
25	0
26	1
27	0
28	0
29	1
30	0
31	0
32	1
33	1
34	1
35	0
36	0
37	0
38	1
39	0
40	0
41	1
42	1
43	1
44	0
45	1
46	1
47	0
48	1
49	1
50	0
51	0
52	0
53	1
54	1
55	1
56	0
57	1
58	1
59	0
60	0
61	0
62	1
63	1
64	1
65	0
66	1
67	1
68	0
69	0
70	0
71	1
72	0
73	0
74	1
75	0
76	0
77	1
78	1
79	1
80	0
81	0
82	0
83	1
84	0
85	0
86	1
87	1
88	1
89	0
90	0
91	0
92	1
93	0
94	0
95	1
96	1
97	1
98	0

n	a(n)
0	0
1	0
2	1
3	0
4	0
5	1
6	1
7	1
8	0
9	0
10	0
11	1
12	0
13	0
14	1
15	1
16	1
17	0
18	1
19	1
20	0
21	1
22	1
23	0
24	0
25	0
26	1
27	0
28	0
29	1
30	0
31	0
32	1
33	1
34	1
35	0
36	0
37	0
38	1
39	0
40	0
41	1
42	1
43	1
44	0
45	1
46	1
47	0
48	1
49	1
50	0
51	0
52	0
53	1
54	1
55	1
56	0
57	1
58	1
59	0
60	0
61	0
62	1
63	1
64	1
65	0
66	1
67	1
68	0
69	0
70	0
71	1
72	0
73	0
74	1
75	0
76	0
77	1
78	1
79	1
80	0
81	0
82	0
83	1
84	0
85	0
86	1
87	1
88	1
89	0
90	0
91	0
92	1
93	0
94	0
95	1
96	1
97	1
98	0